You can do it with this miner as he posted his monthly operating costs.
https://bitcointalk.org/index.php?topic=507568.0

 as 8000 per month. When btc are 415 I calculated  he would be bringing is about 9700 this month but I could be way off. The alt coins mining is harder to get a number. So for this miner and I don't know how typical he is lets assume he paid off all this hardware costs when btc was higher and difficulty was lower is getting very close the not making money any more with existing equipment.